Related Experiment Video
Updated: Jan 26, 2026

C. elegans Positive Butanone Learning, Short-term, and Long-term Associative Memory Assays
Published on: March 11, 2011
Investigation on the Short-Term Aging-Resistance of Thermoplastic Polyurethane-Modified Asphalt Binders
Ruien Yu1,2, Xijing Zhu3,4, Maorong Zhang5,6
1School of Mechanical Engineering, North University of China, Taiyuan 030051, China. yuruien@nuc.edu.cn.
Abstract:
In this reported work, thermoplastic polyurethane (TPU) was used as a reactive polymer modifying agent to prepare a modified-asphalt, using a high-speed shearing method. Physical performance tests of the TPU-modified asphalt were conducted before and after short-term aging, and the aging resistance was examined by the change in materials properties. In addition, low-temperature rheological properties, thermal properties, the high-temperature storage stability, and the aging mechanism of TPU-modified asphalt were also investigated. The results showed that the addition of TPU improved the aging resistance of base asphalt, which was evidenced by the increased penetration ratio and decreased softening point of the asphalt, after aging. Similarly, Fourier Transform infrared (FTIR) spectroscopy results verified that TPU improved the asphalt aging resistance. It was found that the TPU functional groups played a role in improving thermal properties, high-temperature storage stability, and in the dispersion of modified asphalt.
Related Concept Videos
Long-term Depression
Aging
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Resistivity
Resistance
The Effect of Aging on Tissues
Resistance and Conductance
Various factors impact the resistance of a conductor. Spiraling in stranded conductors increases their...

